The Foundation Trilogy by Isaac Asimov

Hardcover. Condition: Near Fine, Dust Jacket: Very Good. 1953. Doubleday. Book Club Edition.

Dust jacket protected in mylar sleeve.

Contains all three books of the Foundation trilogy.

Foundation:
For twelve thousand years the Galactic Empire has ruled supreme. Now it is dying. But only Hari Sheldon, creator of the revolutionary science of psychohistory, can see into the future--to a dark age of ignorance, barbarism, and warfare that will last thirty thousand years. To preserve knowledge and save mankind, Seldon gathers the best minds in the Empire--both scientists and scholars--and brings them to a bleak planet at the edge of the Galaxy to serve as a beacon of hope for a fututre generations. He calls his sanctuary the Foundation.

But soon the fledgling Foundation finds itself at the mercy of corrupt warlords rising in the wake of the receding Empire. Mankind's last best hope is faced with an agonizing choice: submit to the barbarians and be overrun--or fight them and be destroyed.

Foundation and Empire:
The second volume in the "Foundation" saga. Catastrophic events unfold as predicted by Hari Seldon. The First Galactic Empire is crumbling at its centre; conflict rages at its periphery, where the Traders of the Foundation based on Terminus have become a mighty power.

Second Foundation: 
The third volume in the "Foundation" saga. Psychohistorian Hari Seldon was the only man in history to have understood the shifting patterns of the inhabited cosmos. He foresaw that the Foundation he set up on the planet Terminus would be vulnerable, as it was to be attacked by the Mule.